[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/include/dt-bindings/pwm/pwm.h b/src/kernel/linux/v4.19/include/dt-bindings/pwm/pwm.h
new file mode 100644
index 0000000..ab9a077
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/dt-bindings/pwm/pwm.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for most PWM bindings.
+ *
+ * Most PWM bindings can include a flags cell as part of the PWM specifier.
+ * In most cases, the format of the flags cell uses the standard values
+ * defined in this header.
+ */
+
+#ifndef _DT_BINDINGS_PWM_PWM_H
+#define _DT_BINDINGS_PWM_PWM_H
+
+#define PWM_POLARITY_INVERTED			(1 << 0)
+
+#endif